METHOD FOR PRODUCING OXIDE CERAMIC HAVING WATER REPELLENCY

摘要

PROBLEM TO BE SOLVED: To provide a new production method for imparting water repellency to an oxide ceramic surface without using an organic substance.SOLUTION: There is provided a method for producing an oxide ceramic in which a molded body constituted of a metal oxide is sintered while introducing an atmospheric gas (for example, synthetic gas) containing oxygen prepared in a substantially absolute dry condition into a sintering furnace, wherein the moisture concentration of the atmospheric gas is preferably adjusted to be 1000 ppm or less and more preferably to be 100 ppm or less. The oxide ceramic is excellent in water repellent durability and can be safely applied to applications requiring high safety.